diff options
Diffstat (limited to 'src/util.c')
| -rw-r--r-- | src/util.c | 164 |
1 files changed, 0 insertions, 164 deletions
diff --git a/src/util.c b/src/util.c index f41861b64e..f762f9765e 100644 --- a/src/util.c +++ b/src/util.c @@ -3373,170 +3373,6 @@ int signal_from_string_try_harder(const char *s) { return signo; } -int ask_password_tty(const char *message, usec_t until, const char *flag_file, char **_passphrase) { - struct termios old_termios, new_termios; - char passphrase[LINE_MAX]; - size_t p = 0; - int r, ttyfd = -1, notify = -1; - struct pollfd pollfd[2]; - bool reset_tty = false; - enum { - POLL_TTY, - POLL_INOTIFY - }; - - assert(message); - assert(_passphrase); - - if (flag_file) { - if ((notify = inotify_init1(IN_CLOEXEC|IN_NONBLOCK)) < 0) { - r = -errno; - goto finish; - } - - if (inotify_add_watch(notify, flag_file, IN_ATTRIB /* for the link count */) < 0) { - r = -errno; - goto finish; - } - } - - if ((ttyfd = open("/dev/tty", O_RDWR|O_NOCTTY|O_CLOEXEC)) >= 0) { - - if (tcgetattr(ttyfd, &old_termios) < 0) { - r = -errno; - goto finish; - } - - loop_write(ttyfd, "\x1B[1m", 4, false); - loop_write(ttyfd, message, strlen(message), false); - loop_write(ttyfd, ": ", 2, false); - loop_write(ttyfd, "\x1B[0m", 4, false); - - new_termios = old_termios; - new_termios.c_lflag &= ~(ICANON|ECHO); - new_termios.c_cc[VMIN] = 1; - new_termios.c_cc[VTIME] = 0; - - if (tcsetattr(ttyfd, TCSADRAIN, &new_termios) < 0) { - r = -errno; - goto finish; - } - - reset_tty = true; - } - - zero(pollfd); - - pollfd[POLL_TTY].fd = ttyfd >= 0 ? ttyfd : STDIN_FILENO; - pollfd[POLL_TTY].events = POLLIN; - pollfd[POLL_INOTIFY].fd = notify; - pollfd[POLL_INOTIFY].events = POLLIN; - - for (;;) { - char c; - int sleep_for = -1, k; - ssize_t n; - - if (until > 0) { - usec_t y; - - y = now(CLOCK_MONOTONIC); - - if (y > until) { - r = -ETIMEDOUT; - goto finish; - } - - sleep_for = (int) ((until - y) / USEC_PER_MSEC); - } - - if (flag_file) - if (access(flag_file, F_OK) < 0) { - r = -errno; - goto finish; - } - - if ((k = poll(pollfd, notify > 0 ? 2 : 1, sleep_for)) < 0) { - - if (errno == EINTR) - continue; - - r = -errno; - goto finish; - } else if (k == 0) { - r = -ETIMEDOUT; - goto finish; - } - - if (notify > 0 && pollfd[POLL_INOTIFY].revents != 0) - flush_fd(notify); - - if (pollfd[POLL_TTY].revents == 0) - continue; - - if ((n = read(ttyfd >= 0 ? ttyfd : STDIN_FILENO, &c, 1)) < 0) { - - if (errno == EINTR || errno == EAGAIN) - continue; - - r = -errno; - goto finish; - - } else if (n == 0) - break; - - if (c == '\n') - break; - else if (c == 21) { - - while (p > 0) { - p--; - - if (ttyfd >= 0) - loop_write(ttyfd, "\b \b", 3, false); - } - - } else if (c == '\b' || c == 127) { - if (p > 0) { - p--; - - if (ttyfd >= 0) - loop_write(ttyfd, "\b \b", 3, false); - } - } else { - passphrase[p++] = c; - - if (ttyfd >= 0) - loop_write(ttyfd, "*", 1, false); - } - } - - if (ttyfd >= 0) - loop_write(ttyfd, "\n", 1, false); - - passphrase[p] = 0; - - if (!(*_passphrase = strdup(passphrase))) { - r = -ENOMEM; - goto finish; - } - - r = 0; - -finish: - if (notify >= 0) - close_nointr_nofail(notify); - - if (ttyfd >= 0) { - if (reset_tty) - tcsetattr(ttyfd, TCSADRAIN, &old_termios); - - close_nointr_nofail(ttyfd); - } - - return r; -} - void dual_timestamp_serialize(FILE *f, const char *name, dual_timestamp *t) { assert(f); |